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212031023200 = 2552265038779
BaseRepresentation
bin1100010101111000001…
…0001010100001100000
3202021021210202222200021
43011132002022201200
511433214420220300
6241223344403224
721214216650253
oct3053602124140
9667253688607
10212031023200
1181a15a91a87
1235114916514
1316cc0a26609
14a395c9709a
1557ae7c1d1a
hex315e08a860

212031023200 has 36 divisors (see below), whose sum is σ = 517620737340. Its totient is φ = 84812408960.

The previous prime is 212031023153. The next prime is 212031023219. The reversal of 212031023200 is 2320130212.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132518590 + ... + 132520189.

It is an arithmetic number, because the mean of its divisors is an integer number (14378353815).

Almost surely, 2212031023200 is an apocalyptic number.

212031023200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212031023200 is an abundant number, since it is smaller than the sum of its proper divisors (305589714140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212031023200 is a wasteful number, since it uses less digits than its factorization.

212031023200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265038799 (or 265038786 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 212031023200 its reverse (2320130212), we get a palindrome (214351153412).

The spelling of 212031023200 in words is "two hundred twelve billion, thirty-one million, twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 265038779 530077558 1060155116 1325193895 2120310232 2650387790 4240620464 5300775580 6625969475 8481240928 10601551160 13251938950 21203102320 26503877900 42406204640 53007755800 106015511600 212031023200